Which of the Following Statements Is the Primary Reason That

Multiple Choice

Which of the following statements is the primary reason that explains why businesses moved from the production era to the sales era?

A) The population was moving away from urban areas.
B) There were too many customers to serve.
C) Competition grew as the production of goods increased and firms discovered that they could produce more goods than their regular buyers could consume.
D) Advertising was becoming a major marketing force.